Engine tester



FIG. 1 is a left front perspective view of an engine tester showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image thereto;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left front perspective view thereof in the closed position;

FIG. 8 is a front elevational view of FIG. 7;

FIG. 9 is a left side elevational view of FIG. 7 the right side being a mirror image thereto;

FIG. 10 is a top plan view of FIG. 7;

FIG. 11 is a rear elevational view of FIG. 7; and

FIG. 12 is a bottom plan view of FIG. 7. 

The ornamental design for an engine tester, as shown and described. 